The Spacer,sleeve, cataloged under National Stock Number 5365-00-025-6986, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-00-025-6986 |
| Primary Part Number | 4M72-3-50 |
| Item Name | Spacer,sleeve |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Surface Treatment Document and Classification | MIL-C-5541,CLASS 1A.OR CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A |
| Flange Outside Diameter | 0.9750 INCHES MINIMUM AND 1.0100 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.3200 INCHES MINIMUM AND 0.3300 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | MIL-A-12545,TEMPER T6 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.1970 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE OVERALL |
| Flange Width | 0.0910 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4M72-3-50 PRIMARY | The Boeing Company Div Defense (USA) |
| HW-T0017-002 | Raytheon E-Systems, Inc (USA) |
| Reference | Meaning |
|---|---|
| WSI10-50 | 5/9 Secondary reference Atlas Corp Western Sky Industries Div |
| WS1-10-50 | 5/9 Secondary reference Atlas Corp Western Sky Industries Div |
| 295925-50 | 5/1 Secondary reference The Boeing Company Div Defense |
| SL2609-3-50 | 5/2 Secondary reference U.S. Government activity |
| 10118406 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5365-00-025-6986 is a Spacer,sleeve, manufactured by The Boeing Company Div Defense, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-00-025-6986 has 2 manufacturer part numbers on file: 4M72-3-50 (The Boeing Company Div Defense), HW-T0017-002 (Raytheon E-Systems, Inc).
1 possible match (shared part number, not a government interchangeability claim): 5365-00-632-7952. Verify interchangeability with system specifications before substitution.
Key specifications for 4M72-3-50: Corner Shape: SQUARE ALL CORNERS; Surface Treatment Document and Classification: MIL-C-5541,CLASS 1A.OR CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A; Flange Outside Diameter: 0.9750 INCHES MINIMUM AND 1.0100 INCHES MAXIMUM IN; Body Outside Diameter: 0.3200 INCHES MINIMUM AND 0.3300 INCHES MAXIMUM IN. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.